Exam question 1 · Colours: mixing, the colour wheel, warm and cool

Identify the principal reason for which the admixture of many paints yields a brown or grey colour.

Mova's choice: option 2 · The right answer: option 2 · right ✓ · Who acts: you, admixture · What happens: identify, yield, admix · To what, where: principal reason, brown colour, many paints

This is exam question 1 of lesson 13 «Colours: mixing, the colour wheel, warm and cool» of the arts course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Identify	identify	VERB	Mood=Imp VerbForm=Fin	root	root
2	the	the	DET	Definite=Def PronType=Art	4 reason	det
3	principal	principal	ADJ	Degree=Pos	4 reason	amod
4	reason	reason	NOUN	Number=Sing	1 Identify	obj
5	for	for	ADP	_	6 which	case
6	which	which	PRON	PronType=Rel	12 yields	obl
7	the	the	DET	Definite=Def PronType=Art	8 admixture	det
8	admixture	admixture	NOUN	Number=Sing	12 yields	nsubj
9	of	of	ADP	_	11 paints	case
10	many	many	ADJ	Degree=Pos	11 paints	amod
11	paints	paint	NOUN	Number=Plur	8 admixture	nmod
12	yields	yield	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 reason	acl
13	a	a	DET	Definite=Ind PronType=Art	17 colour	det
14	brown	brown	ADJ	Degree=Pos	17 colour	amod
15	or	or	CCONJ	_	16 grey	cc
16	grey	grey	ADJ	Degree=Pos	14 brown	conj
17	colour	colour	NOUN	Number=Sing	12 yields	obj
18	.	.	PUNCT	_	1 Identify	punct

#	verb	tense, mood	who	what, whom	other	roles by
1	identify	imperative	you not said here	the principal reason		vn characterize-29.2-1-1 «NP V NP S_ING»: agent=Agent reason=Theme
2	yield	present	the admixture of many paints	a brown colour	for the principal reason	vn future_having-13.3 «NP V NP PP.goal»: agent=Agent colour=Theme for which=Goal
3	admix			many paints		nom admixture «state transitive»: of=patient

One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

The options

Option 1

The colours cancel one another and become transparent upon the surface

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 colours	det
2	colours	colour	NOUN	Number=Plur	3 cancel	nsubj
3	cancel	cancel	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	one	one	NUM	NumForm=Word NumType=Card	3 cancel	obj
5	another	another	DET	PronType=Ind	4 one	fixed
6	and	and	CCONJ	_	7 become	cc
7	become	become	VERB	VerbForm=Inf	3 cancel	conj
8	transparent	transparent	ADJ	Degree=Pos	7 become	xcomp
9	upon	upon	ADP	_	11 surface	case
10	the	the	DET	Definite=Def PronType=Art	11 surface	det
11	surface	surface	NOUN	Number=Sing	8 transparent	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	cancel	present	the colours	one					tree rules
2	become	infinitive	the colours not said here					transparent property	vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient

Option 2 · ← Mova's choice · ✓ the right answer

Each paint absorbs a different portion of the light, so little colour remains

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Each	each	DET	PronType=Tot	2 paint	det
2	paint	paint	NOUN	Number=Sing	3 absorbs	nsubj
3	absorbs	absorb	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	a	a	DET	Definite=Ind PronType=Art	6 portion	det
5	different	different	ADJ	Degree=Pos	6 portion	amod
6	portion	portion	NOUN	Number=Sing	3 absorbs	obj
7	of	of	ADP	_	9 light	case
8	the	the	DET	Definite=Def PronType=Art	9 light	det
9	light	light	NOUN	Number=Sing	6 portion	nmod
10	,	,	PUNCT	_	14 remains	punct
11	so	so	ADV	_	12 little	advmod
12	little	little	ADJ	Degree=Pos	14 remains	amod
13	colour	colour	NOUN	Number=Sing	14 remains	compound
14	remains	remains	NOUN	Number=Ptan	3 absorbs	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	absorb	present	each paint	a different portion of the light				little colour remains obl	vn absorb-39.8 «NP V NP»: agent=Goal portion=Theme

Option 3

The mixture of all paints produces white light

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 mixture	det
2	mixture	mixture	NOUN	Number=Sing	6 produces	nsubj
3	of	of	ADP	_	5 paints	case
4	all	all	DET	PronType=Tot	5 paints	det
5	paints	paint	NOUN	Number=Plur	2 mixture	nmod
6	produces	produce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
7	white	white	ADJ	Degree=Pos	8 light	amod
8	light	light	NOUN	Number=Sing	6 produces	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	produce	present	the mixture of all paints	white light					vn create-26.4 «NP V NP»: agent=Agent light=Result

Option 4

Paint is by its nature brown in every instance, whatever its apparent hue

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Paint	paint	NOUN	Number=Sing	6 brown	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 brown	cop
3	by	by	SCONJ	_	6 brown	mark
4	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	5 nature	nmod:poss
5	nature	nature	NOUN	Number=Sing	6 brown	nsubj
6	brown	brown	ADJ	Degree=Pos	root	root
7	in	in	ADP	_	9 instance	case
8	every	every	DET	PronType=Tot	9 instance	det
9	instance	instance	NOUN	Number=Sing	6 brown	obl
10	,	,	PUNCT	_	11 whatever	punct
11	whatever	whatever	PRON	PronType=Rel	9 instance	nmod
12	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	14 hue	nmod:poss
13	apparent	apparent	ADJ	Degree=Pos	14 hue	amod
14	hue	hue	NOUN	Number=Sing	11 whatever	nsubj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Paint			every instance whatever		brown property	tree rules

Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.

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